Question about Panasonic PT-47WX53 47" Rear Projection HDTV

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Not the convergence amps (stk-120's)

Hello again guys and gals.

Well here I am again with the same problem as I had before. convergence. blue gun still of the charts. replaced the convergence amps. Both. still nothing. I did read something on the back of the tv about the eprom? what is it and could that be my problem? If not what other solutions am I looking at? anyone?

still banging my head against the wall,

jim

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  • Master
  • 1,694 Answers

Convergence amps require B+ voltage to run them...they originate in the power supply and are fuse protected......then
they are fed to current limiting resistors near the IC's....
These devices must be checked......But,the #1 problem is use
of less than first quality IC's......STK392-110's,-120 and-150 can
be upgraded to STK394-160E made by Sanyo.....I use Hitachi
part # CZ 01341 or save money = buy kit with two IC's and some resistors part # X 480293...........read any of my convergence
repair solutions......................T.

Posted on Mar 28, 2008

  • Vista Electronics Mar 28, 2008

    PS.I highly suggest you leave the EEprom alone!.........T.

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1 Answer

I have a PT-53WX53 CRT rear projection widescreen tv. The guns off and the red and blue are no longer aligned. I tried to adjust with the 9 point convergence correction but it only helped a bit. I know...


Convergence + - don't alignment or some mis alignment anywhere in the picture.The R,G,B colors lines don't move any of the color line.The tv convergence board have dead parts.The 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergencce board,must be replaced to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

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See my solution <http://www.fixya.com/support/t2795690-convergence_off_blue_line_only_vertical>.
You need to get to the service menu--it's been 4 years so go to AVSforum.com to turn off the different guns and get the better pattern.
At your risk: To get into Service mode:
1. Turn your TV on. 2. For X81 or earlier series: Press MUTE on your remote and release. 2. For H80/H81/HX81 series: Press MUTE on your remote and release two times ("Mute" on-screen) 3. Press down MUTE on your remote again and hold. While holding, press the MENU button on your TV set's front panel. 4. Release both buttons. 5. An "S" should appear on your screen. Press MENU again on your TV. 6. Now you're in service mode. Channel Up/Dn - Scrolls through Parameters and Volume Up/Dn - Changes Parameter Value
To get into convergence mode:
Get into Service mode, then Hit '7' to bring up the convergence grid. Buttons 100, 0, and ENT control which gun you want to turn off (if you want to align the red to the green without seeing the blue gun and other variations). 2=up, 8=down, 4=left, 6=right, 3=change gun to converge, 5=converge that point. To exit convergence mode you press 7 once and your screen should look like it's imploding then return to normal and then you press 7 to get back into regular service mode.
I have more info found on the board. -Ken

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2 Answers

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Your blue convergence amplifier is out and needs to be replaced.

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1 Answer

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The convergence IC's probably need to be replaced. Unless you are savvy with electronics, I would not attempt to fix it. Call a professional. I would estimate a repair cost of aprox. 280.00 to 350.00.
Hope this helps,
Skyassoc

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1 Answer

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HELLO. IT SOUNDS LIKE IT COULD BE A COUPLE OF THING WRONG WITH IT. .!!! ONE IS YOU CRT GUN . MIGHT NEED TO BE REPLACED ,!! ! TWO IS YOU COULD BE HAVE A CONVERGENCE BORAD MIGHT NEED TO BE REPLACED OR MAYBE JUST THE IC'S ON THE BOARD NEED TO BE REPLACED. IT WOULD BE CHEPER .!!! IF YOU KNOW HOW SAULDERING GUN. "GOOD LUCK"

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It is not the gun ,but the convergence IC that needs replaced providing that you have went into the tv menu and selected convergence and manually adjusted the blue convergence.

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my suggestion would be...to replace the focus block..john

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1 Answer

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You are going to need a full convergance alignment to rectify this issue.

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1 Answer

Bent image


Excelent description,whats happening is your set starts to show a blue convergence problem and is only correctable by replacing the blue convergence amplifier IC,the set has 3,one for each color,not all of them develope problems but they all develope loose conections,after the IC has been replaced there are adjustments to do.If you are familiar with tv service this information will give a place to start but if you are not too familar be safe and call a servicer to help you.Lets US know how it goes.

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